W. M. Keck Observatory - Faintest Known Star System Orbiting The Milky Way Discovered From Hawaiʻi:

Faintest Known Star System Orbiting the Milky Way Di...

UrsaMajorIII UNIONS1 UMa3U1 GravitationallyBound LambdaColdDarkMatter DarkMatter LCDM Cosmology Astronomy